IMP Reference Guide  develop.5ce362c3b9,2024/09/17 The Integrative Modeling Platform
IMP::algebra::Transformation2D Class Reference

Simple 2D transformation class. More...

#include <IMP/algebra/Transformation2D.h>

Inheritance diagram for IMP::algebra::Transformation2D:

## Detailed Description

Simple 2D transformation class.

Definition at line 29 of file Transformation2D.h.

## Public Member Functions

Transformation2D (const Transformation2D &)=default

Transformation2D ()
Default constructor. An invalid transformation is built. More...

Transformation2D (const Rotation2D &r, const Vector2D &t=Vector2D(0.0, 0.0))
Constructor from a Rotation2D and translation vector. More...

Transformation2D (const Vector2D &t)
Constructor for a transformation with an identity rotation. More...

Transformation2D get_inverse () const
Return the inverse transformation. More...

const Rotation2D get_rotation () const
Return the rotation. More...

Vector2D get_transformed (const Vector2D &o) const
Perform the transformation on a 2D vector. More...

const Vector2D get_translation () const
Return the translation. More...

Vector2D operator* (const Vector2D &v) const
Perform the transformation on a 2D vector. More...

Transformation2D operator* (const Transformation2D &tr) const
Compose two transformations. More...

const Transformation2Doperator*= (const Transformation2D &o)
See help for operator*. More...

Transformation2D operator/ (const Transformation2D &b) const
Compute the transformation d which, when composed with b, gives this one. More...

const Transformation2Doperator/= (const Transformation2D &o)
See help for operator/. More...

Transformation2Doperator= (const Transformation2D &)=default

void set_rotation (double angle)

void set_translation (const Vector2D &v)
Set the translation. More...

void show (std::ostream &out=std::cout) const

## Constructor & Destructor Documentation

 IMP::algebra::Transformation2D::Transformation2D ( )

Default constructor. An invalid transformation is built.

Definition at line 34 of file Transformation2D.h.

 IMP::algebra::Transformation2D::Transformation2D ( const Rotation2D & r, const Vector2D & t = Vector2D(0.0, 0.0) )

Constructor from a Rotation2D and translation vector.

Definition at line 37 of file Transformation2D.h.

 IMP::algebra::Transformation2D::Transformation2D ( const Vector2D & t )

Constructor for a transformation with an identity rotation.

Definition at line 41 of file Transformation2D.h.

## Member Function Documentation

 Transformation2D IMP::algebra::Transformation2D::get_inverse ( ) const

Return the inverse transformation.

 const Rotation2D IMP::algebra::Transformation2D::get_rotation ( ) const

Return the rotation.

Definition at line 93 of file Transformation2D.h.

 Vector2D IMP::algebra::Transformation2D::get_transformed ( const Vector2D & o ) const

Perform the transformation on a 2D vector.

Parameters
 [in] o vector where the transformation is applied
Note
: The transformation is done first applying the rotation and then the translation

Definition at line 52 of file Transformation2D.h.

 const Vector2D IMP::algebra::Transformation2D::get_translation ( ) const

Return the translation.

Definition at line 98 of file Transformation2D.h.

 Vector2D IMP::algebra::Transformation2D::operator* ( const Vector2D & v ) const

Perform the transformation on a 2D vector.

Note
: The transformation is done first applying the rotation and then the translation

Definition at line 61 of file Transformation2D.h.

 Transformation2D IMP::algebra::Transformation2D::operator* ( const Transformation2D & tr ) const

Compose two transformations.

Note
The transformations are composed such that for any vector v (rt1*rt2)*v = rt1*(rt2*v)

Definition at line 68 of file Transformation2D.h.

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 const Transformation2D& IMP::algebra::Transformation2D::operator*= ( const Transformation2D & o )

See help for operator*.

Definition at line 73 of file Transformation2D.h.

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 Transformation2D IMP::algebra::Transformation2D::operator/ ( const Transformation2D & b ) const

Compute the transformation d which, when composed with b, gives this one.

That is a(x)== d(b(x)) for all x.

Definition at line 81 of file Transformation2D.h.

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 const Transformation2D& IMP::algebra::Transformation2D::operator/= ( const Transformation2D & o )

See help for operator/.

Definition at line 87 of file Transformation2D.h.

 void IMP::algebra::Transformation2D::set_translation ( const Vector2D & v )

Set the translation.

Definition at line 101 of file Transformation2D.h.

The documentation for this class was generated from the following file: